-Kees- wrote:^How exactly is that calculated? And is there only RAPM stats for this year?
Do you want "exactly" or "kinda sorta"? I gave the "kinda sorta" answer in my primer (towards the end):
It's a regularized version of adjusted +/- (APM). Basically, it decreases the variance of predictions that you would make with APM, which results in a lower overall prediction error.
Those RAPM ratings I linked to are a weighted multi-year result. Here are the single-year 2012 results:
I'm also calculating adjusted four-factor +/-, which is another way to do it:
http://www.d3coder.com/thecity/2012/05/ ... g-to-a4pm/